PNI RESIN MADE PUMPS

www.tsurumi-global.com PNI RESIN MADE PUMPS

Submersible Resin Made Wastewater Pumps Tsurumi s PNI-series of submersible wastewater pumps are made of resin and stainless steel, which makes them compact, lightweight and easy to handle. The pumps feature an energy-saving design that reduces power consumption by approx. 20% in comparison with competitor pumps of equivalent output class. The combination of resin and stainless steel provides excellent durability and corrosion resistance regardless of the lightweight body. And, the resin material used for these pumps is compounded at the optimum ratio for the relevant parts. Therefore, the PNI-series is more advantageous in terms of durability and corrosion resistance than simple resin pumps. Furthermore, PNI-series pumps are so compact that they can be easily installed in limited/cramped spaces such as inside septic tanks/johkasou and wastewater tanks of small-scale wastewater treatment facilities, and wastewater tanks under home and building kitchens. In addition, because the PNI-series uses food-grade liquid paraffin for lubricating oil, these pumps are safe and fish-friendly if used for water circulation and water features in carp/koi ponds, fish farms, waterfalls, etc. Tsurumi s PNI product lineup also includes an AUTO type with a bell-shaped float switch that enables automatic operation. This float switch can change pump operation between manual and auto modes. Using a magnet incorporated in the float switch, pump operation is automatically controlled according to the rise or fall in water level. And, since the float moves only up/down, the pump can work in limited installation space, and rarely malfunctions even in wastewater containing oil. Users can adjust the water level at which the pump starts and stops, by adjusting the float position with a screwdriver. In comparison with pumps using a general float, this model enables drainage at lower water level. Original technologies that Tsurumi has accumulated through research and proven in the market are integrated into the compact body of the PNI-series pumps, e.g., an anti-wicking cable*, dual inside (* Except for AUTO type) mechanical seals with silicone carbide face and an Oil Lifter. Tsurumi, as a pioneer of resin pumps, has researched designs that enable continuous duty for many years, while pursuing pump durability and maintainability. Thanks to these technologies, Tsurumi pumps ensure stable quality and safety, thus inspiring more confidence in use. 1 2

Special Resin The resin used for the PNI-series is not simple resin, but special resins produced by applying advanced treatment to elaborate compound material. Each pump component is made of resin that has been compounded at the optimum ratio for the role of the relevant parts. Therefore, the PNI-series is more advantageous in terms of durability and corrosion resistance than simple resin pumps. Model 1 PPS-(MD+GF)0 - Excellent heat resistance and chemical resistance, and high mechanical strength PPO-GF20 - Water-proofing, and resistance to acids and alkalis -GF20 - Excellent impact resistance, water-proofing, and resistance to acids and alkalis - Excellent impact resistance, water-proofing, and resistance to acids and alkalis 2 Removable Handle 3 Handle : Head Cover : PPS-(MD+GF)0 6 7 4 9 8 Upper Pump Casing : -GF20 Impeller : PPO-GF20 Oil Casing : PPS-(MD+GF)0 Lower Pump Casing : Back Pull-out Design 1 Removable Handle Since the handle can be separated from the head cover, just the handle itself can be replaced. 2 Anti-wicking Cable Entry * Not available on AUTO type Prevents water incursion due to capillary wicking should the power cable be damaged or the end submerged. 3 Motor Protector Miniature Thermal Protector (0.4kW) Detects excess heat, therefore, protecting the pump against overheating and dry-running. Circle Thermal Protector (0.7kW) Directly cuts the motor circuit if excessive heat builds up or overcurrent occurs in the motor. 4 Dual Inside Mechanical Seals with Silicon Carbide Face Isolated in the oil chamber where a clean, non-corrosive and abrasion-free lubricating environment is maintained. Compared with the water-cooled outside mechanical seal, it reduces the risk of failure caused by dry-heating and adhering matter. The silicon carbide provides times higher corrosion, wear and heat resistance than the tungsten carbide. Strainer : Oil Lifter [Patented] Provides lubrication and cooling of the seal faces down to 1/3 of normal oil level, thus maintaining a stable shaft sealing effect and prolonging seal life longer. 6 Liquid Paraffin Oil This high-purity oil is commonly used in the cosmetics, pharmaceuticals and food processing equipment. Because it is a food grade lubricant, the pump can be safely used for water features in carp/koi ponds and fish farms. 7 Back Pull-out Design Enables the motor to be separated from the pump unit with the impeller attached, by removing the bolts between the oil casing and the pump casing. This design facilitates maintenance and inspection of the principal parts of the pump. 8 Resin Semi-vortex Impeller Resists wear caused by abrasive particles and enables the pump to maintain its original performance for an extended period of time. 9 Air Release Valve Fitted on the water jacket to prevent the Air-lock. When air flows through the valve, the ball stays at the bottom, but when the pumped water starts to flow, the ball closes the outlet because of its buoyancy. 3 4

PNI PNI (AUTO) AUTO Type Automatic Operation Automatic and manual operation modes can be changed over with a single switch. The bell-shaped float moves only up/down, so this pump is suitable for installation in limited/cramped places. This model enables drainage at lower water levels than pumps with a float for general start/stop water level. With the adjustable float switch, this pump can work at a water level suitable for field conditions. The possibility of float malfunction is low, even in wastewater containing a certain amount of oil. PNI (AUTO) Operation Automatic Operation 0.4kW 0.7kW 0.4kW 0.7kW 1 2 3 Performance Curves Standard and Automatic Models have the identical performance. 18 S.S. 3000min -1 18 S.S. 3600min -1 Total Head (m) 1 10 0PNI2.7S 0 Hz Total Head (m) 1 10 0PNI2.7S 60 Hz The process is repeated. 0 0 100 200 300 400 Capacity (L /min) Specifications PUMP MOTOR Discharge Bore Discharge Connection Solids Passage Impeller Casing Shaft Seal Type / Pole Output Phase Insulation Starting Method Motor Protector (built-in) Lubricant Frame Shaft Cable Dimensions L x W x H Dry Weight (excluding Cable) (AUTO) 0 0 100 200 300 400 Capacity (L /min) 0PNI2.7S 0PNI2.7S (AUTO) 0 mm Threaded Oval Flange 10 mm Semi-vortex / Glass-fiber Reinforced Resin (PPO-GF20) Glass-fiber Reinforced Resin (Upper: -GF20 / Lower: ) Dual Inside Mechanical Seals (with Oil Lifter) / Silicon Carbide Dry-type Submersible Induction Motor / 2-pole 0.4 kw 0.7 kw Single E Capacitor Run Miniature Thermal Protector Circle Thermal Protector 240 ml / Liquid Paraffin (ISO VG32) 304 Stainless Steel 403 Stainless Steel m / PVC 241 x 162 x 360 mm 241 x 246 x 36 mm (AUTO) 7.2 kg 7.4 kg (AUTO) 241 x 162 x 380 mm 241 x 246 x 38 mm (AUTO) 9.3 kg 9. kg (AUTO) Installation in Limited/Cramped Space The bell-shaped float moves only up/down, so the pump enables drainage in limited/cramped space and at a low water level. Since the float does not oscillate right/left, the possibility of malfunction is reduced. Adjustable Float Switch The position of the bell-shaped float can be adjusted easily with a screwdriver. Users can adjust the start/stop water level to field conditions. Drainage of Wastewater Containing Oil With a cylindrical float, oil contained in inflow water becomes greasy, whereby causing pumps to malfunction. However, with the bell-shaped float, the above phenomenon does not occur, so the pump rarely malfunctions even in wastewater containing a certain amount of oil or household wastewater. Auto-Manual Selector Switch Start Water Level Stop Water Level 6

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